Dry hydrogen is trapped by pellet of mercury in a uniform capillary tube closed at…

Physics WAEC 1990

Dry hydrogen is trapped by pellet of mercury in a uniform capillary tube closed at one end. If the length of the column of hydrogen at 27°C is 1.0m, at what temperature will the length be 1.20m?

  • 22.5oC
  • 32.4oC
  • 77.0oC
  • 87.0oC checkmark
  • 360.0oC

The correct answer is: D

Explanation

V1/T1
=
V2/T2

1.0/(273 + 27)
=
120/T2

T2 = 360K = 87
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